Oven wall



Nov. 23 1926. 7 1,607,905

" C- F. MAYER OVEN WALL,

Filed Sept. 8, 1924 I N VEN TOR.

c'a -z 9. Wag m BY m '6 ATTORNEYS Patented Nov. 23, 1926.

UNITED STA S 1,6019% PATENT OFF-ICE CARL MAYER, OF LAKEWOOD, OHIO.

ovnn WALL.

Application filed September 8, 1924. Serial No. 736,537.

In the construction of various kinds of ovens, such as core ovens, enaineling ovens, drying ovens and the like, it is customary for obvious reasons to incorporate insu-' lating material in the walls. It is also desirable in order to facilitate the erec ionof ovens, especially those of larger'size, to have such walls of sectional form, the component sections being usually made of two spaced parallel plates with a filling of suitable insulating material therebetween.

In the "present "improvedconstruction of oven wall, I greatly increase the heat insulating capacity oisuch wall by employing not only sections of the type just described, but by in effect building a double wall of such sections laterally spaced apart, the intervening space being then packed with a suitable insulating filler. In order to facilitate the assembly of such double .wall and insure necessary rigidity and strength, as well as continuity of insulation where the wall meets the floor of the oven and at the several corners, special means are provided for retaining the component heat insulating panels or slabs, as they are sometimes called, in properly spaced relation and for uniting their juxtaposed edges, whether the panels be longitudinally aligned, as in a side wall or top of the oven, or angularly related as at one of the corners of the oven.

To the accomplishment of the foregoing and related ends, the invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims, the annexed drawing and the following description setting forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle otthe invention may be used.

In said annexed drawing:--

Fig. l is a broken transverse cross-section oi portion of an oven embodying my present improved features of construction; FigQZis asection on a larger scale showing method or tastening together-the edges .of the panels where the latter are disposed in substantial alignment i s 'similarly -a section on larger scale is'howing .Jth'e oolistruction at the base "of one bf thewalls where such wall united to the fio'orof the even;- and Fig; 4; is asection'corresponding with thatot Fig. *2, but showing a modificatio'nJ i W 'wvhich they project'l slab-like form. It will be understood that V in the several figures of the drawing, only the edges and the immediately adjacent portions-ot two juxtaposed sections are shown. As shown in Fig. '1, the floor 1 of the oven is raised and is composed of briclror equiv alent "wearing material of satisfactory heat insulating character. The side walls'2and the top wall- 3, where necessary, maybe supported about and over suchflfioor by means of a structural iron framework, comprising vertical members or posts t and transversely arranged beams 5, suitably attached to the upper ends of such posts, as need not be described in detail.

As previously indicated, each individual component panel or slab employed in" the construction or my improved furnace wall comprises two metallic plates 6 and 7 which are laterally spaced from each other, the space between such plates being filled with any suitable insulating material 8, such as asbestos or the like. The lateral edges of such pane'ls'or slabs, which require to be joined together in order to form a continuous wall, are closed by means of channel strips 9 that are disposed with their flanges 10 directed outwardly and in parallel relation with the edge portions of the plates 6 and 7. Such channel strips will preferably be narrower than the space between the plates so that the flanges 10 will lie some distance from the latter, respectively, the intervening space being filled with insulating material, just as is the larger clear space between the plates. It is necessary in order to retain such channel strips in proper relation to the plates that the'parts in question be secured together, preferably 'in the permanent manner described and claimed inniy pending application filed November 24,, 1922,5eria1id e-603,091. It will "be-understood, however, that any suitable means for thus securing the ":parts' com .pcsit the' individual panel Orsl'ab maybe utilizedl solong as the latter are-left with jc'o'rresponding inner and outer flanges along their ged ge'g which flanges are substantially -parall'el'iwith theis'id'es 'of the panel fire-m "i rl ueg embe lebee th te s- T! as said or equivalent construction in my present improved wall, pairs of such panels are arranged in parallel relation with a space therebetween substantially equal to that between the plates 6 and 7. This space is closed continuously about the edges of the panels by securing between the corresponding flanges that project from such edges a channel strip 12. Just as in the case of the channel strips 9 between the component plates 6 and 7 of the individual panels, such channel strip 12 is somewhat narrower than the space between the paired panels and strips or washers 13 of insulating material are interposed. Rivets or short bolts 14 are then passed through the flanges on the edges of the panels and the sides of such interposed channel strip to secure the parts together. As shown in Fig. 2, the insulating washers 13 may take the form of flanged sleeves that surround such rivets or bolts and prevent direct contact thereof with the sides of the channel 12 so that the latter is eliectively insulated from the flanged edges of the panels. The space between the two panels when thus assembled may be left a dead air space but preferably will contain sheet rockwool filler or equivalent material. It will thus be seen that a component section of the oven wall consists of a pair of insulated panels that are in effect permanently secured together in predetermined spaced relation. In assembling sections constructed as aforesaid to form the wall or root oi a furnace, the sections are brought together with their edges in juxtaposed re lation, as shown in the upper right-hand portion of Fig. 1. Such edges, however, are not allowed directly to abut, an adequate space 15 for the interposition of insulating material being left. In order to close this space on either side or at the top and bottom, in the case oi sections that enter into the roof of the oven, metal strips 16 with their respective edges rebent to form chan nels 17 are employed, these channels being of the proper width to receive and snugly fit the flanges on the corresponding edges of the panels that compose the adjacent wall sections.

Where the component sections are angularly related to form a corner, as shown at the upper left-hand corner of Fig. 1, instead of a flat strip 16, a strip 18 of corresponding angular form in cross-section is utilized to bridge thespace between the flanges on the edges of the outer panels.

Where the side wall of the oven meets the floor 1, as shown in the lower letthand corner of Fig. 1, the outer panels that compose the corresponding wall sections are preterably longer -than the inner panels so that they may drop below the edge of the floor and thus laterally encase the same. The diflerence in height between the two panels will be such that the inner panel will at the same time rest on the floor surface proper and the space between the two panels is correspondingly shortened. In order to retain the sheet rockwool filler between the panels out of contact with the floor and also in order to prevent the outer panel of the wall section from directly contacting with the floor, a strip 20 of insulating material will be desirably secured to the edge of the floor, as shown in detail in Fig. 3, so as to enter the space between the panels in question and project a trifle beyond such floor edge.

In the modified form of construction shown in Fig. 4, it will be noted hat the use of channels 12 to connect the adjacent edges of the paired panels is done away with, and the sheet 25 of rockwopl filler or equivalent insulating material extends across the junction lines between the respective pairs of such panels. In this way the conduction and transmission of heat through the assembled wall at such junction lines between the panels is still more' effectively broken.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention 1. In a sectional heat insulating wall, the

combination of a pair of heat-insulated panels arranged in parallel relation with a space therebetween adapted-to receive afilling, each panel comprising plates with interposed insulating filling; and means adjacent the edges of said panels adapted to maintain the same in such relation.

2. In a sectional heat insulating wall, the combination of a pair of heat-insulated panels arranged in parallel relation with a space therebetween adapted to receive afilling, each panel comprising plates with interposed insulating filling; and means adjacent the edges of said panels adapted to maintain the same in such relation, said means including heat-insulating material.

3. Ina sectional heat insulating wall, the combination of a pair of heat-insulated panels arranged in parallel relation with a space therebetween adapted to receive a tilling, each panel comprising plates with interposed insulating filling; said panels being formed alon their edges with flanges parallel with the sides thereof; and channels disposed between corresponding flanges of tlie'panels, the sides of said channels being secured to such flanges, whereby said panels are maintained in such spaced relation.

4. In a sectional heat insulating wall, the combination of a. pair of heat-insulated.

panels arranged in parallel relation With a space therebetween adapted to receive a filling, each panel comprising plates With interposed insulating filling; said panels being formed along their edges with flanges parallel with the sides thereof; channels disposed between corresponding flanges of the panels; and securing means passing through but heat-insulated from the sides of said channels and the adjacent flanges, whereby said panels are maintained in such spaced relation.

In a sectional heat insulating wall, the combination with sections each comprising a pair of heat-insulated panels arranged in parallel relation with a space therebetween adapted to receive a filling, each panel being made up of plates with interposed insulating filling and means adjacent the edges of said panels adapted to maintain the same in such relation; of means for connecting adjacent ections together, said mean; including a strip formed to inter-engage with the juxtaposed edges oi corresponding panels.

6. in a sectional heat insulating wall, the combination with sections each comprising a pair of heat-insulated panels arranged in parallel relation with a space therebetween adapted to receive a filling, each panel being made up of plates with interposed insulating filling and means adjacent the edges of said panels adapt-ed to maintain the same in such relation; of means for connecting adjacent sections together, said means including a strip formed with a channel along each side, the juxtaposed edges of corresponding panels being provided with flanges adapted to enter such channels.

7. In an oven of the character described, the combination with a raised floor; of a heat insulating wall comprising a pair of heat insulated panels arranged in parallel relation with a space therebetween and means adjacent the edges of said panels adapted to maintain the same in such relation, the outer panel of such pair being dropped below the edge of said floor and the inner panel resting on the top surface of the latter.

8. In an oven of the character described, the combination with a raised floor; of a heat insulating wall comprising a pair of heat insulated panels arranged in parallel relation with a space therebetween and means adjacent the edges of said panels adapted to maintain the same in such relation, the outer panel of such pair being dropped below the edge of said floor and the inner panel resting on the top surface of the latter; and an insulating strip mounted on the edge of said floor and entering the space between said panels.

9. In an oven of the character described, the combination with a raised floor; of a heat insulating wall comprising a pair of heat insulated panels arranged in parallel relation with a space therebetween and means adjacent the edges of said panels adapted to maintain the same in such relation, the outer panel of such pair being dropped below the edge of said floor and the inner panel resting on the top surface of the latter; and an insulating strip mounted on the edge of said floor and entering the space between said panels, said strip projecting slightly beyond such floor edge so as to keep said outer panel from contacting with said floor.

Signed by me, this 2nd day of Sept, 1924.

CARL F. MAYER. 

